Plz answer if u can :P

In what form is the following linear equation written y=9x+2

Asphere has a diameter of 10 in. what is the volume of the sphere?

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36